From 2200b94a6c9f9004b43a71b7fc2321e43f7110da Mon Sep 17 00:00:00 2001
From: Xjph <archseraphim@gmail.com>
Date: Sun, 29 May 2022 21:57:57 -0230
Subject: [PATCH] Manually trigger Lua GC periodically.

---
 ObservatoryExplorer/CustomCriteriaManager.cs | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/ObservatoryExplorer/CustomCriteriaManager.cs b/ObservatoryExplorer/CustomCriteriaManager.cs
index e412538..df222ca 100644
--- a/ObservatoryExplorer/CustomCriteriaManager.cs
+++ b/ObservatoryExplorer/CustomCriteriaManager.cs
@@ -13,12 +13,13 @@ namespace Observatory.Explorer
         private Lua LuaState;
         private List<LuaFunction> CriteriaFunctions;
         Action<Exception, String> ErrorLogger;
-
+        private uint ScanCount;
 
         public CustomCriteriaManager(Action<Exception, String> errorLogger)
         {
             ErrorLogger = errorLogger;
             CriteriaFunctions = new();
+            ScanCount = 0;
         }
 
         public void RefreshCriteria(string criteriaPath)
@@ -191,7 +192,8 @@ namespace Observatory.Explorer
         public List<(string, string, bool)> CheckInterest(Scan scan, Dictionary<ulong, Dictionary<int, Scan>> scanHistory, Dictionary<ulong, Dictionary<int, FSSBodySignals>> signalHistory, ExplorerSettings settings)
         {
             List<(string, string, bool)> results = new();
-           
+            ScanCount++;
+
             foreach (var criteriaFunction in CriteriaFunctions)
             {
                 var scanList = scanHistory[scan.SystemAddress].Values.ToList();
@@ -255,9 +257,20 @@ namespace Observatory.Explorer
                 }
             }
 
+            if (ScanCount > 99)
+            {
+                ScanCount = 0;
+                LuaGC();
+            }
+
             return results;
         }
 
+        private void LuaGC()
+        {
+            LuaState.DoString("collectgarbage()");
+        }
+
         internal class Parent
         {
             public string ParentType;